Questions 11 to 15 are based on the following interview.

A. Creating environmentally friendly settings.
B. Planning communities around people rather than automobiles.
C. Designing towns to encourage interactions between residents.
D. Going along with practical building trends to sprawl.

(A) 条件(1)充分，但条件(2)不充分．

(B) 条件(2)充分，但条件(1)不充分．

(C) 条件(1)和条件(2)单独都不充分，但条件(1)和条件(2)联合起来充分．

(D) 条件(1)充分，条件(2)也充分．

(E) 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

直线y=(2m-3)x-4m+7通过点P(-2，-4)．
(1)关于x的方程x²+(2m+1)x+m²+2=0有两个不相等的实数根．
(2)关于x的方程x²+(2m+1)x+m²+2=0有两个相等的实数根．